/**
  * Informs all registered element state listeners about the just-completed replace of the given
  * element's content.
  *
  * @param element the element
  * @see IElementStateListener#elementContentReplaced(Object)
  */
 protected void fireElementContentReplaced(Object element) {
   Iterator e = new ArrayList(fElementStateListeners).iterator();
   while (e.hasNext()) {
     IElementStateListener l = (IElementStateListener) e.next();
     l.elementContentReplaced(element);
   }
 }